CACNA1H and idiopathic generalized epilepsy: In humans, several studies have reported associations between CACNA1H single nucleotide polymorphisms (SNPs) and epileptic phenotypes, especially in idiopathic generalized epilepsy (IGE) [42, 69, 87, 138], reviewed in [158, 167], since the first report by Chen et al. [37] describing CACNA1H SNPs in childhood absence epilepsy (CAE) patients.